The 2-in-1 design means you can carry thing in the traditional upright position (2-wheels) or down flat (on 4-wheels). It also features a telescoping handle and a lightweight frame that is chemical, corrosion and rust resistant. In fact, it is light enough your grandma can probably pick it up to put it in her car trunk, as you can see in the images below (it weighs less than 15 pounds). Rated 4+ stars from over 200 Amazon customers.